target-ppc: fix mullw/mullwo

Based on patch by Julian Seward. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5379 c046a42c-6fe2-441c-8c8c-71466251a162

target-ppc: fix mullw/mullwo
Based on patch by Julian Seward. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5379 c046a42c-6fe2-441c-8c8c-71466251a162
aurel32
1 parent 66029f6a
Showing 2 changed files with 5 additions and 1 deletions
target-ppc/op.c
target-ppc/op_helper.c
@@ -798,7 +798,11 @@ void OPPROTO op_mulli (void)
 /* multiply low word */
 void OPPROTO op_mullw (void)
 {
+#if defined(TARGET_PPC64)
+    T0 = (int64_t)(int32_t)T0 * (int64_t)(int32_t)T1;
+#else
     T0 = (int32_t)(T0 * T1);
+#endif
     RETURN();
 }
  
@@ -227,7 +227,7 @@ void do_divduo (void)
  
 void do_mullwo (void)
 {
-    int64_t res = (int64_t)T0 * (int64_t)T1;
+    int64_t res = (int64_t)(int32_t)T0 * (int64_t)(int32_t)T1;
  
     if (likely((int32_t)res == res)) {
         xer_ov = 0;